IRIE Mitsuteru

写真a

Affiliation

Engineering educational research section Department of Civil and Environmental Engineerring Program

Title

Professor

External Link

Research Areas 【 display / non-display

  • Social Infrastructure (Civil Engineering, Architecture, Disaster Prevention) / Hydroengineering

 

Papers 【 display / non-display

  • Tracing sediment transport history using mineralogical fingerprinting in a river basin with dams utilizing sediment sluicing

    Ito K., Matsunaga M., Itakiyo T., Oishi H., Nukazawa K., Irie M., Suzuki Y.

    International Journal of Sediment Research   2023

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    Language:Japanese   Publishing type:Research paper (scientific journal)   Publisher:International Journal of Sediment Research  

    Sediment causes a serious problem in relation to dam function. A cooperative sediment sluicing operation has been under way since 2017 to prevent sediment from accumulating in dams in the Mimi River, Miyazaki, Japan. To achieve a smooth and stable operation, it is very important to determine the sediment source and a sediment transport system to maintain the dam's function. In the current study, the source and transport of sediment from the Mimi River basin have been analyzed with X-ray diffraction (XRD) to reveal the peaks of mineral species. The sediment samples were collected in the Mimi River basin from the Tsukabaru Dam to the sea in an area including 4 dams and 5 tributaries. In addition, the minerals in samples collected in 2014, before the start of the sediment sluicing operation, and from 2018 to 2020, after the start of the operation, were analyzed. An evaluation of the similarity of the sediment at each sampling point based on the X-ray diffraction peaks of mineral species showed that sediment distributed upstream was transported downstream in the year when the sediment sluicing was done. This result indicates that the sediment sluicing operation at dams ensured the continuity of the sediment distribution in the Mimi River basin. In addition, an investigation done in 2020 showed that sediment particles very similar to those of the upstream tributaries were deposited downstream because of extensive flooding caused by a large typhoon. The management of sediment transport has the greatest importance in a river basin where a dam is to be constructed. It is possible to trace the history of the sediment distribution and movement resulting from the operation of sediment sluicing by using sediment mineral analysis.

    DOI: 10.1016/j.ijsrc.2022.12.002

    Scopus

  • Estimating the impact of rainwater harvesting system installation on floods using hydrological models Case study: Nyabugogo valley, Kigali

    ALINE Uwineza, IRIE Mitsuteru

    沙漠研究   32 ( 3 )   92 - 92   2022.12

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    Language:English   Publishing type:Research paper (scientific journal)   Publisher:日本沙漠学会  

    <p>Rwanda, a landlocked country located in East Africa, is under the temperate climate due to the high altitude though near to the equator. 5.3% of the territory is covered by water bodies, lakes, and rivers. Both rainy and dry season come twice a year with frequent inundations and water shortage. Kigali, the capital city, and the most populated city in the country, is affected by floods during rainy season. Nyabugogo valley, the downtown of the capital is the typical affected area with devastating damage. The mitigation measures such as widening Mpazi drainage channel were taken by the government based on a number of researches. However, the inundation still occurs every year. This research aims to propose rainwater harvesting (RWH) that can supply water to each household, as a mitigation measure to floods. In order to assess the effect of RWH installation on the flood control, Runoff modeling and simulation of Flood inundation was carried out.</p><p>Nyabugogo river catchment area, delineated using DEM, is 1663.95 km<sup>2</sup>. The dominant land cover is forest (65%) and crop land (22%). Run-off from the upper catchment area was simulated using SWAT model with input data of elevation, soil, and land use data. The simulation was done for 3 years 2011-2013 and calibrated using SWAT CUP.</p><p>IRIC Nays2Dflood Model was used to simulate and visualize the flooded area with the input data of the discharge simulated by the above modeling and water level at downstream of the flooded area for the flood event reported on March 2<sup>nd</sup> and 3<sup>rd</sup> 2020. The boundary conditions were set along the river, with two inflow points: Nyabugogo river and Mpazi outlet. The maximum water depth and the maximum velocity were observed at the confluence of the two streams; and flood extended throughout the valley. The accuracy of the simulation was checked by comparison with the sentinel2 satellite images.</p><p>The RWH system installation will be simulated and its hydrological impact on flood will be assessed as the final outcome of this research. Rainwater harvesting system installation, additionally to reducing flood mitigation, can contribute to improvement of the population’s health and sanitation, which aligns with the SDGs. Knowing the extent at which RWH can reduce flood, will open to further studies on design and cost analysis of the system.</p>

    DOI: 10.14976/jals.32.3_92

    CiNii Research

  • Farmers’ preferences of the agricultural inputs for rice farming in Senegal River Basin, Mauritania: A best-worst scaling approach

    MARUYAMA Yuki, UJIIE Kiyokazu, AHMED Cherif, DIAGNE Mandiaye, IRIE Mitsuteru

    沙漠研究   32 ( 3 )   69 - 69   2022.12

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    Language:English   Publishing type:Research paper (scientific journal)   Publisher:日本沙漠学会  

    <p>In Mauritania, consumption of rice, which is a staple food, is increasing rapidly, because rice takes less time to cook than other cereals such as millet, sorghum, and maize. To meet this growing demand, Mauritanian food policy encourages rice imports. However, the 2008 food crisis led to rice shortage, owing to a steep rise in the price of imported rice. To ensure overall food security, the government has adopted certain agricultural policies and projects to bolster rice production in the Senegal River Basin. Under these circumstances, numerous previous studies suggested solutions for improving productivity and efficient farm management. Whereas, these studies were leaded by the field observation to grasp current farm condition and the questionnaire survey for understanding the actual amount of inputs (e.g. fertilizer and pesticide) and harvest, the preferences and perceptions of local farmers regarding rice farming have been neglected. In order to achieve the sustainable agricultural development, cooperation of local farmers is indispensable. Therefore, farmers’ perceptions should be taken into consideration of agricultural policy making.</p><p>In this study, we attempted to evaluate the farmers’ preferences of the agricultural inputs for rice farming quantitatively in Mauritania. Furthermore, we clustered farmers with similar preferences and tried to discuss the heterogeneity of preferences based on the characteristics of each group.</p><p>In order to evaluate these farmers’ preferences, a best-worst scaling (BWS) method was applied with 29 farmers on March, 2018. BWS is a method to evaluate preferences by choosing “most important attribute” and “least important attribute” one by one. In this survey, six attributes which are seed fertilizer, pesticide, irrigation, labor and machinery were assumed. Moreover, based on these results, farmers who have the similar preferences was grouped by a cluster analysis.</p><p>As the results, while most farmers value seeds and irrigation in rice production, pesticide and labor tend to be neglected. In addition, based on a cluster analysis, farmers were grouped into three groups: (1) group that emphasizes irrigation, (2) group that places the highest priority on agricultural machinery, and (3) group that prefers seeds.</p><p>On the other hand, as a characteristic of each group, Group 1 includes many farmers engaged in rice production on paddy filed equipped with irrigation facilities, and it can be seen that they understand the importance of irrigation. In group 2, farmers have relatively large-scale paddy field. In order to improve the efficiency, agricultural machineries are emphasized.</p>

    DOI: 10.14976/jals.32.3_69

    CiNii Research

  • Prediction of the discharge in Pech River for the flood warning system, based on the time series of snow cover area and meteorological data

    HOSSAINI Hossaini Mir Mohammad Mones, IRIE Mitsuteru

    沙漠研究   32 ( 3 )   93 - 93   2022.12

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    Language:English   Publishing type:Research paper (scientific journal)   Publisher:日本沙漠学会  

    <p>Floods in the arid areas provide fertile soil and water resources, enabling agricultural production. Based on its productivity, towns with a large population have developed along the riverbanks. On the other hand, large flood beyond the expectation will cause enormous human and economic damage. The Pech River, our study site, is a tributary of the Kunar River, which runs through eastern Afghanistan. The catchment area of the river is populated by 35.5% of the population and has 21% of the agricultural land of Kunar province.</p><p>The main source of the river discharge is melted snow in the upper mountainous areas, and the maximum discharge that appears in the following spring changes depending on the amount of snowfall in the previous winter. In the year of heavy snowfall in the upper mountainous areas, the residential areas and the agricultural lands along the river experienced severe inundation.</p><p>Therefore, it is necessary to predict the peak discharge in spring in advance and provide appropriate flood warnings so that the local residents can take evacuation and damage mitigation measures. In this study, we tried to develop a method for predicting the peak discharge based on the fluctuation of snow cover area evaluated with satellite images, temperature, and rainfall of the upper reaches of the Pech River.</p><p>First, the boundary of the river catchment was identified based on the DEM of 30 m mesh acquired by Advanced Land Observing Satellite (ALOS). Next, the Snow cover distribution data between 2008 and 2018 at weekly intervals was downloaded from the National Snow & Ice Data Center (NSIDC) database, and the catchment area was extracted. Daily temperature and precipitation data at the station nearby the catchment stored in the database of National Oceanic and Atmospheric Administration (NOAA) were expected as the parameter explaining the snow melting process in spring.</p><p>We tried to reproduce the discharge of the Pech River using these explanatory variables related to the process of snowfall and snowmelt with some statistical and stochastic methods. The multi-regression analysis and Neural Network were examined to reproduce the discharge fluctuation of Pech River.</p>

    DOI: 10.14976/jals.32.3_93

    CiNii Research

  • Modeling of Sediment Transportation in Ichkeul Lake for the Estimation of the Influence of the Constructions of the Reservoirs in the Upper Streams Reviewed International coauthorship

    Irie M., Kotegawa H., Kawachi A., Ouni H., Tarhouni J.

    Water (Switzerland)   14 ( 13 )   2022.7

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    Authorship:Lead author, Corresponding author   Language:Japanese   Publishing type:Research paper (scientific journal)   Publisher:Water (Switzerland)  

    Rich ecosystems such as estuaries and brackish lakes are vulnerable to the effects of human activities and are prone to environmental changes. In particular, the salt environment, which is the backbone of the environment, might be affected not only by direct modifications such as dredging but also in ways that were not initially envisioned. Ichkeul Lake, located in the northern part of Tunisia, is a shallow brackish lake registered as a UNESCO World Natural Heritage Site. The construction of reservoirs upstream of the inflowing river in the 1980s reduced the amount of freshwater inflow. That only had been thought to be the cause of the increase in salinity in Ishkeul Lake. On the other hand, the sedimentation in the reservoirs upstream was remarkable, and the supply of sediment from the reservoirs upstream to the Ichkeul Lake was stopped. Changes in sediment out-flow may have reduced lakebed altitude and enhanced seawater intrusion. However, the environmental protection measures for the lake so far have focused only on improving the water budget and have not been quantitatively evaluated for sediment transportation. In this study, we first estimated the water budget of the lake. Then the re‐suspension by wind disturbance in the lake was estimated from the correlation with the wind speed based on laboratory experiments and field measurements. The outflow of the sediment estimated with these two models was compared with the sediment volume trapped in the upstream reservoirs that would have flowed into the lake if there had been no construction of the dams. Based on this, we evaluated whether the lake is cur-rently erosive or cumulative. As a result, the estimated annual outflow of sediment to the sea was 4300 tons/year. It was estimated that the construction of the reservoirs upstream changed the trend of lakebed height from accumulation to erosion.

    DOI: 10.3390/w14131984

    Scopus

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Books 【 display / non-display

  • 沙漠学事典

    日本沙漠学会編( Role: Contributor)

    丸善株式会社  2020.7 

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    Language:Japanese Book type:Dictionary, encyclopedia

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  • Resource-Oriented Agro-sanitation Systems

    1) Sintawardani N., Ushijima K., Hamidah U., Deguchi Y. Triastuti J., Funamizu N., Irie M., Ishikawa T.( Role: Joint author)

    Springer  2019 

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    Language:Japanese Book type:Scholarly book

  • Sustainable North African Society -Exploring Seeds and Resources for Innovation-

    Isoda H., Neves M. Kawachi A.( Role: Joint author)

    Nova Publisher  2015.1 

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    Language:English Book type:Scholarly book

  • 全世界の河川辞典

    高橋裕( Role: Joint author)

    丸善  2013.10 

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    Language:Japanese Book type:Dictionary, encyclopedia

  • 沙漠の辞典

    真木太一、安部征雄( Role: Joint author)

    丸善  2009.10 

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    Language:Japanese Book type:Dictionary, encyclopedia

MISC 【 display / non-display

  • セラミックスが実現 する途上国の水環境 問題:水処理技術か ら水資源管理まで

    袋布昌幹・入江光輝

    セラミックス   53 ( 2 )   66 - 69   2018.2

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    Language:Japanese   Publishing type:Article, review, commentary, editorial, etc. (scientific journal)  

  • 筑波大学北アフリカ研究センターでの学際的研究の取り組み

    入江光輝,柏木健一,礒田博子

    沙漠研究   23 ( 3 )   147 - 150   2013.12

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    Language:Japanese   Publishing type:Article, review, commentary, editorial, etc. (scientific journal)   Publisher:日本沙漠学会  

  • バイオ燃料事業の実施上の課題‐事業採算性と二酸化炭素排出削減に関するレビュー‐

    入江光輝

    沙漠研究   21 ( 3 )   99 - 102   2011.12

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    Language:Japanese   Publishing type:Article, review, commentary, editorial, etc. (scientific journal)   Publisher:日本沙漠学会  

  • チュニジアの水資源とその循環利用

    安部征雄,礒田博子

    沙漠研究   18 ( 3 )   171 - 175   2009.12

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    Language:Japanese   Publishing type:Article, review, commentary, editorial, etc. (scientific journal)   Publisher:日本沙漠学会  

Presentations 【 display / non-display

  • 世界遺産イシュケウルにおける水収支の推定

    小手川洋俊,入江光輝

    令和2年度土木学会度西部支部研究発表会講演概要集  2021.3 

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    Event date: 2021.3.5

    Presentation type:Oral presentation (general)  

  • UAV空撮画像による貯水池表層クロロフィル分布評価

    入江光輝,眞邊雄元

    令和2年度土木学会度西部支部研究発表会講演概要集  2021.3 

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    Event date: 2021.3.5

    Presentation type:Oral presentation (general)  

  • Submarine springs in Bassiya bay, Syria International conference

    Irie, M

    ____ 

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    Event date: 2006

    Language:Japanese  

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Awards 【 display / non-display

  • ダム工学会 論文賞

    2016.4   ダム工学会  

    石川忠晴、王明陽、入江光輝、中村恭志

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    Award type:International academic award (Japan or overseas)  Country:Japan

Grant-in-Aid for Scientific Research 【 display / non-display

  • 健全な流砂系の回復によるサステナブル流域総合土砂管理の実証研究

    2017.04 - 2020.03

    科学研究費補助金  基盤研究(B)

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    Authorship:Coinvestigator(s) 

  • 食料増産に向けた大河川の農地氾濫制御事業評価のための新たな便益評価基準の検討

    2016.08 - 2019.03

    科学研究費補助金  基盤研究(B)

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    Authorship:Principal investigator 

    大陸大河川の治水事業が速やかに実施できるよう、費用便益評価の基準について再考を行う。ケーススタディサイトとしてセネガル川下流部のモーリタニア国側氾濫域を対象とする。

  • 世界遺産イシュケウルの物質サイクルを活用した持続可能な環境復元・管理技術の提案

    2015.04 - 2019.03

    科学研究費補助金  基盤研究(A)

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    Authorship:Coinvestigator(s) 

    侵食傾向にある湿地の底泥を安定化し、塩水侵入を制御する

  • サハラ砂漠周縁の水資源に関わる2大問題解決に向けた調査研究

    2013.10 - 2017.03

    科学研究費補助金  基盤研究(A)

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    Authorship:Principal investigator 

    乾燥地貯水池の堆砂管理と飲料用地下水の浄化に同時に取り組む

  • サハラ砂漠周縁貯水池の持続的利用のための新たな管理・運営手法構築に向けた調査研究

    2010.04 - 2013.03

    科学研究費補助金  基盤研究(B)

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    堆砂の著しい貯水池の底泥中に含まれる腐植物質の有効利用等について検討